Welcome to the Quiz!
This quiz contains 5 questions from a mix of 1 subtopics.
What is the purpose of rubbing the perspex rod against the cloth?
to cool it down
to heat it up
to make it heavier
to charge it by transferring electrons between the materials
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What will the student observe when a charged rod is brought close to the top plate of an uncharged gold leaf electroscope?
the gold leaf will discharge
the gold leaf will be deflected
a spark
the gold leaf will fall off
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Static electricity is caused by the imbalance of charges. Which sub-atomic particle is transferred when a perspex rod is rubbed with a cloth?
alpha particle
proton
neutron
electron
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A student charges a perspex rod and places it near a gold leaf electroscope. The gold leaf is deflected by 20o. The rod is then rubbed for a further minute. Which of the following is the most likely angle of deflection when the rod is placed near the gold leaf electroscope again?
0o
15o
25o
20o
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When a balloon is rubbed against a jumper it sticks to the wall. Explain why.
protons are transferred to the balloon when rubbed against the jumper. These are attracted to atoms in the wall.
electrons are transferred to the balloon when rubbed against the jumper. These are attracted to the protons in the wall.
electrons are transferred to the balloon when rubbed against the jumper. These are repelled by atoms in the wall.
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